Modelling Hydrological Response to Different Land-use and Climate Change Scenarios in the Upper Reach of Minjiang River

Land-use and climate change can influence on basin hydrology cycle and affect water resources what has caused widespread concern in society.We studied on Minjiang upstream watershed,used distributed watershed hydrological model SWAT(Soil and Water Assessment Tool),established different land-use and climate change scenarios.Based on model calibration and verification,the hydrology response to different land-use and climate change scenarios was simulated.The results indicate the runoff varied with different land-use type,the simulated runoff increased when forestland decreased,and the bareland is the most effective on runoff response.The simulated runoff increased with increased precipitation,and the increased runoff concentrated in summer.